Improvement in sheet-metal boxes



S. B. BUSHFIELD.

Sheet-Meta! Boxes.

Patented'Aug. 11,1874.

UNITED STATES PATENT FFIGE.

SAMUEL B. BUSHFIELD, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE- HALF HISRIGHT TO ROBERT D. MORRISON AND JOHN H. WARNER, OF

SAME PLACE.

IMPROVEMENT IN SHEET-METAL BOXES.

Specification forming part of Letters Patent No. 153,932, dated August11, 1874; application filed December 29, 1873.

To all whom it may concern:

Be it known that I, SAMUEL B. BUSIIFIELD, of the city and county ofBaltimore, and State of Maryland, hay e invented a new and usefulImprovement in Boxes; and I do hereby declare the following to be aclear and exact description of the nature thereof, sufficient to enableothers skilled in the art to which my invention appertains to fullyunderstand, make, and use the same, reference being had to theaccompanying drawings making part of this specification, in which Figure1 is an end view of the box embodying my invention. Fig. 2 is a top orplan view thereof. Fig. 3 is a view of the inner side of one endthereof. Fig. 4 is a face view of the blank.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention consists in constructing the body of a box of a singlepiece of metal in such a manner that there are no open joints, theoutside of the box is uniform, and solderingis not required.

Referring to the drawings, Arepresents the box, which is constructed outof the piece or blank B. 0 represents folds, which are made at thecornersof the blank by means of the lines a 1), extending inwardly fromthe edges of two adjacent sides of the blank, and the lines 0, extendingfrom the corners of the blank to the points of junction of the lines ab. The sides D of the blank will be turned up at the lines d; and thesides or ends G at the lines f. The diagonal line c-of each fold O turnsinwardly, and causes the formation, at each corner of the box, of adouble-fold thickness or piece, H, diagonal or triangular in shape,which fold is then laid against the in nor face of one side or end ofthe box, and, thus uniting the corners of the box, the latter iscomplete.

It will be seen that there are no open joints or seams in the box, andescape of its contents cannot occur. The pieces H also serve tostrengthen or stiffen the box, and said pieces so slightly reduce thearea or capacity of the box that the reduction is immaterial. Theoutside of the box is uniform at all points. there being no projectingparts or exposed cut edges of the material at the sides.

Another body, of size to fit over the body as stated, but similarlyconstructed, may be employed as a lid for the box; and, when the twoparts are soldered to each other, a closed box is provided, which willbe found service able for oysters and other commodities.

The blank may have a piece, (shown by the dotted lines h,) which, whenthe body of the box is constructed as stated, will constitute the lid ofthe box; but, if desired, a separate piece maybe employed for the samepurpose.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- The box A, having its corners united bythe diagonal or triangular folds II, which project into the box, and arecontinuous of the sides thereof, substantially as and for the purposeset forth.

SAMUEL B. EUSHFIELD.

WVitnesses JOHN H. WARNER, ALONZO D. BARTLESON.

